Render a template with 60fps
All you have to do is increase the number of frames that your animation takes. Go to the dope sheet and select &quot;action editor&quot; now select all of your keyframes with A and press S and then press 2. This would slow down your animation by half.
Edit: I will add images to show you



As you can see, now the animation takes up double the amount of frames. Meaning it will take twice s long to complete, meaning it will be half as fast.